ubuntu14.04 Installation 1

1. Make USB boot file

Http://www.jb51.net/os/94398.html

2.

Third boot device boot order 3.
In boot  order 1 of first boot Device, select the boot options for USB devices such as USB-HDD, Usb-zip, usb-cdrom, etc. as needed.

PS;
I want to tell you, actually do not set! You can press F12 at startup.
Then a list appears, and the Down key option USB-HDD may also be usb-zip. Press ENTER directly, and then you can boot from the USB stick. The advantage of this is that the BIOS settings are not changed, with no dire consequences.

ubuntu14.04 Installation 1